Punching and riveting machine.



` G. WRITING an P. PARGELLS. PUNGHING AND RIVENQ MACHINE. APPLICATIONFILI-) AUG. 17, 1908.

966,376.- Patented Aug. 9,1910.

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G. WRITING da ARGELLS. PUNCHING AND n1 NQ MAGHINB.

AAAAAAAAAA N FILED AUG-.17| 1908.

, Patented Aug.9,1910.

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MUNTTET) STATES PATENT OFFICE.

GEORGE WHITING AND PAUL PARCELLS, OF CHICAGO, ILLINOIS, ASSIG-NORS TOGEORG- WHITING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

i PUNCI-IING AND RIVETING MACHINE.

To all whom it may concern:

Be it known that we, GEORGE WHITING and PAUL PARonLLs, citizens of theUnited States, residing at Chicago, in the county of Cook and State ofIllinois, have invented a certain new and useful Punching and RivetingMachine, of which the following is a specification.

Our invention consists of a machine capable both of punching andriveting for the purpose of iirst punching the work and then rivetingthe same without the necessity of changing the tools in the machine, towhich end the usual head of a machine of this general character is madedouble, that is,\pro vided with a punch and also a rivet set while thestake is correspondingly provided with a punching die and also with arivet set box.

Our machine is more particularly designed tor punching and rivetingpipe, especially corrugated pipe in which it is desirable to first punchall of the holes as the work is i'ed inwardly upon the stake and to thenrivet the work as the pipe is drawn outwardly upon the stake. However,it desired the punching and riveting operation may alternate for eachrivet.

Our invention further contemplates the employment of means for holdingthe pipe elevated above the upper surface of the stake so that therivets may be inserted vfrom above instead of below, thereby attaininggreater speed in the work.

Cur invention also contemplates the employment of an adjustable strippercoperating with the punch and capable of convenient manipulation by theoperator whenever desired.

Our machine embodies other novel and advantageous features ofconstruction which will be apparent from the. description hereinaftergiven.

In the drawings Figure l is a side elevation of our machine showing acorrugated metal pipe as the work placed upon the stake of the machine;Fig. 2 an elevation of a somewhat larger scale of the front end of thestake; Fig. 3 a section on the line 3-3 of Fig. 2 and illustrating inaddition the lower front end of the head of the machine; Fig. fi asection on the line 4 4 of Fig. 3; Fig. 5 a Jfront elevation of thelower-portion of the head of the machine; Fig. 6 a sectional elevationon the line 6 6 of Eig. l,

Specification of Letters Patent.

Application led August 17, 1908.

Patented Auw. 9, 1910..

Serial N0. 448,887.

the upper portion of said ligure being an elevation 0i' the head afterthe removal of the face plate; Fig. 7 a detail view of a portion of thestake illustrating a modified form of construction of hold up device forthe pipe; and Fig. 8 a detail view of a modified form ofconstruction forrelative adjustment of the tool members.

Referring to the present embodiment of vour invention in which we employa double head, that is, one punch and one rivet set, although a greaternumber of such tools might be employed, the frame l of the machine isprovided with the usual head 2 and also a stake 3 upon which the work isplaced. Vithin this head is arranged a slide 4 caused to move or slidevertically by means of an eccentric 5 operating through the medium of apintle 6 and a pintle box 7. Upon the lower end of this slide is secureda punch block 8 carrying the tools proper and adjustable with respect tothe slide by means of the adjustable wedge 9 coperating with thecomplementary face l0 on the slide. This wedge is movable transverselyof the slide by means of an adjusting screw 11, one end of which entersthe punch block and the other of which engages the flange 12 of thewedge. By adjusting this wedge in one direction or the other theposition of the tools, hereinafter described, with respect to the workis controlled.

The punch block, in the present instance, carries two tools, one ofwhich is a punch 13 and the other a rivet set 14C. These tools aresimilarly mounted so that the detail description of one will apply toboth. As shown in Fig. 6 the punch is secured to the punch stock l5 bymeans of a coupling nut 16. This punch stock extends downwardly througha suitable opening in the punch block and is provided at its upper endwith a head. To operatively connect the punch block and punch stock alaterally movable gag 17 is employed which when in its inwardly shiftedposition shown in Fig. `6 is positioned above the head of the punchstock with the result that when the slide and punch block movedownwardly the punch will perform its work. However, when the gag 1spulled outwardly clear of the punch stock, the punch will move upwardl.in the space above its head and will per orm no work. A gag is providedfor each one 0i the` tools so that either one of the tools alone or bothtogether may be caused to operate accordingly as the gags are adjusted.

yThe adjustablestripper which cooperates with the punch consists of anirregularshaped bar comprising the straight or horizontal portion18 andan angular portion 19 terminating in the two jaws 20 which when thestripper is in position are located on opposite sides of the punch. Thisstripper is supported by the head of the machine and is adapted to beadjustable thereon and to this end the horizontal portion 1S of thestripper is arranged to slide in depending supports or brackets 21secured to the front of the face plate 2a of the head'. By preferencethese brackets or supports are made adjustable with respect to the faceplate by bolt and slot connection therewith. In the present instance theslots 22 are formed in the brackets or supports and the bolts 28 aresecured to the face plate. In order that the operator may convenientlyoperate or adjust the stripper we provide the same with a handle 2Awithin convenient reach. It will be observed that by moving` the bar 18in one direction or the other the stripper may be removed from positionor brought into position, as the case may be. For the purpose of holdingthe work somewhat elevated above the punching die 25 and the rivet setboX` 26 on the stake and to thereby permit ofithe insertion of therivets from above instead of below we provide metal strips 27 preferablytwo. in number and located on either side of the punching and rivetingelements on the stake. These meta-llic strips are secured at their innerend t'o the stake in any suitable manner and the same are bent upwardlyso that they will have a tendency to hold the work, such as a metalpipe, above the upper surface of the stake, but will be free to givedownwardly in the punching and riveting operation. When the workoperated upon is a corrugated metal pipe as herein illustrated by A weprefer to provide these strips with a suitable number of corrugations27a corresponding and fitting with the corrugations of the pipe with theresult that these strips will have a double function, that is, they.will serve not only to hold the pipe upwardly above the upper surfaceof the stake but will also gage the pipe and thereby present the pipeaccurately to the punching and riveting elements. Although we prefer touse the metallic strips just explained yet as indicated in Fig. 7 othermeans may be employed for holding the pipe above the top surface of thestake, as for instance the block or projection 28 arranged in a socketwithin and rising from the top of such stake, and held spring pressedoutwardly by the spring'29.

As shown in Fig. 8, the adjustment between the tool members may beobtained by having t-he wedge device act on the lower or iXed members onthe stake instead of on the movable members. In this modification, thesefixed members are mounted on a block 30 below which the wedge 31 isplaced with the result that when the adjusting screw 32 is turned thetool members are raised or lowered according to the direction ofrotation of said screw. This adjusting device may be used in lieu of oras supplementary to the similar device for the upper or movable members.

Owing to recent developments in the pipe industry including both theplain pipe and corrugated pipe but more particularly the latter, it hasbecome necessary to perform the work of punching and riveting with thegreatest speed and economy and with the least amount of handling of thework and particularly without the necessity of changi-ng tools in themachine. To meet these requirements the present machine has beendesigned which is itself capable of both the punching and rivetingoperations so that the work may be punched as it moves inwardly andriveted as it moves outwardly or if desired the punching and rivetingoperations may alternate in respect to each rivet. Furthermore, theadjustable stripper is of simple and eilicient design and capable ofbeing readily and col'iveniently operated so as not to delay orinterfere with any of the operations. In addition the metallic strips 27also contribute to the speed and economy of the operations inasmuch asthey enable the rivets to be inserted from above instead of from belowwhich is not only a slow but an expensive operation inasmuch as it takesconsiderable more time. Furthermore, when the metallic strips arecorrugated for corrugated pipe work the same accurately gage andposition the pipe with respect to the punching and riveting elements.

le claim:

1. In combination with a punching machine and the head piece and thepunch thereof, a stripper mounted loosely upon such head piece andcapable of instant movement laterally and bodily toward and away fromthe work; substantially as described.

2. In combination with a punching machine and the head piece and thepunch thereof, a stripper mounted to slide at all times loosely upon thehead piece and capable of instant movement laterally and bodily towardand away from the punch; substantially as described.

3. In combination with a punching machine and the head piece and thepunch thereof, a stripper mounted to slide at all times loosely upon thehead piece and capable of instant movement bodily toward .and away fromthe punch, and a handle se* cured to said stripper for the handmanipulation thereof; substantially as described.

4:. In combination with a punching machine and the head piece and thepunch thereof, a stripper mounted upon the head piece and arranged forboth horizontal and vertical adjusting movement with respect to thework; substantially as described.

5. In combination with a punching ma chine and the head piece and `thepunch thereof, a stripper comprising a horizontal portion mounted uponthe head 'piece and an angular portion adapted to coperate with thework; substantially as described.

6. In combination with a punching machine and the head piece and thepunch thereof, a stripper coperating with the punch and adjustable withrespect thereto, and adjustable brackets in which the stripper ismounted to slide, said stripper being capable of instant movementlaterally and bodily toward and away from the.punch; substantially asand for the purpose described.

7. In combination with a punching machine and the head piece and thepunch thereof, a stripper coperating with the punch and adjustable withrespect thereto, and brackets which are secured to and adjustable uponthe head piece and in which the stripper is mounted to slide;substantially as described.

8. In combination with a punching machine and the head piece and thepunch thereof, a stripper comprising a horizontal bar 1S adapted toslide on the head, and an angular portion 19 terminating in jaws 20 onopposite sides of the punch; substantially as described.

9. In a machine of the class described, the combination, with the stake,of means for holding the work raised above the surface of the stake,comprising a plate secured to the stake and extending upwardlytherefrom; substantially as described.

10. In a machine of the class described, the combination, with thestake, of means for holding the work raised above the surface of thestake comprising resilient strips acting as springs and secured to thestake; substantially as described.

ll. In a machine of the class described,

the combination, with the stake, of means for holding the work raisedabove the surface of the stake comprising resilient metallic stripssecured at one end to the stake and inclined upwardly and forwardly ofthe stake; substantially as described.

12. In a machine of the class described, the combination, with thestake, of means for holding the work raised above the surface of thestake comprising resilient strips secured to the stake and provided withcorrugations to lit the corresponding corrugations of a pipe to gage thelatter in the machine; substantially as described.

\ GEORGE IVHITING.

PAUL PARCELLS. Witnesses LEE SIIEPARD, JOHN Sonmsiir.

